Who murdered my lovely Prometheus container in Kubernetes cluster?
As of October 1, 2023, LINE has been rebranded as LY Corporation. Visit the new blog of LY Corporation here: LY Corporation Tech Blog This blog post is about an interesting experience I had while investigating and resolving a problem that happened in the Prometheus container which was still in the CrashLoopBackoff state. The phenomenon itself and the solution are obvious and simple; so simple that
I’ve learned that the biggest difference between someone that has mastered a language, framework or tool and someone who hasn’t lies in the mental models they use. One person will have a clear and advanced one and the other will not. By having a good mental model you can intuitively understand complex problems and device solutions much faster than if you had to find a solution with a step-by-step
An AnandTech Interview with Jim Keller: 'The Laziest Person at Tesla'
Topics Covered AMD, Zen, and Project Skybridge Managing 10000 People at Intel The Future with Tenstorrent Engineers and People Skills Arm vs x86 vs RISC-V Living a Life of Abstraction Thoughts on Moore's Law Engineering the Right Team Idols, Maturity, and the Human Experience Nature vs Nurture Pushing Everyone To Be The Best Security, Ethics, and Group Belief Chips Made by AI, and Beyond Silicon A
I found and reported this vulnerability with @ginkoid. This was actually the first report that paid out for me on HackerOne. At $35,000, it’s also the highest bounty I’ve received so far from HackerOne (and I believe the highest GitHub has paid out to date). A lot of bugs seem to be a mix of both luck and intuition. In this blog post, I’ll illustrate my thought processes in approaching such a targ
Warp: Improved JS performance in Firefox 83 – Mozilla Hacks - the Web developer blog
Introduction We have enabled Warp, a significant update to SpiderMonkey, by default in Firefox 83. SpiderMonkey is the JavaScript engine used in the Firefox web browser. With Warp (also called WarpBuilder) we’re making big changes to our JIT (just-in-time) compilers, resulting in improved responsiveness, faster page loads and better memory usage. The new architecture is also more maintainable and
Practical Ways to Write Better JavaScript - Stack Overflow
In our 2019 Dev Survey, we asked what kind of content Stack Overflow users would like to see beyond questions and answers. The most popular response was “tech articles written by other developers.” So from now on we'll be regularly publishing articles from contributors. If you have an idea and would like to submit a pitch, you can email pitches@stackoverflow.com. Hey there, I'm Ryland Goldstein, a
Composer, PHP dependency manager was released about 8 years ago, and its second major version is just around the corner. Over the years, Composer received many new features, and kept up with PHP standards. Composer version 2 will be mostly compatible with your existing workflows, while bringing some more great new features. Faster download times One of the most noticeable changes would be its perf
Opens in a new windowOpens an external siteOpens an external site in a new window On February 24, 2021, Shipit!, our monthly event series, presented Making Commerce Extensible with WebAssembly. The video is now available. At Shopify we aim to make what most merchants need easy, and the rest possible. We make the rest possible by exposing interfaces to query, extend and alter our Platform. These in
In 2021 Ben Bridts published a highly inventive method for finding the AWS Account ID of a public S3 bucket. This post describes a technique to find the Account ID of any S3 bucket (both private and public). I'd highly recommend reading Ben's technique first as we will re-use a lot of concepts. S3 Bucket to AWS Account ID Shell output can be worth a thousand words, here's what our technique enable
After almost an year of hard work, I’m excited to finally announce Quark! You can check it out now over at https://quarkjs.io 🎉 Quark is a general purpose software tool specifically designed to help you create projects written in HTML, CSS and JavaScript with native desktop app like capabilities. Why? 🤔The idea of Quark started when I was pursuing my degree in Engineering and felt a need for a s
Happy New Year everyone! In late December 2023 (Christmas Day to be precise), CPython core developer Brandt Bucher submitted a little pull-request to the Python 3.13 branch adding a JIT compiler. This change, once accepted would be one of the biggest changes to the CPython Interpreter since the Specializing Adaptive Interpreter added in Python 3.11 (which was also from Brandt along with Mark Shann
Fellow Amazonians: I’m excited to announce that this Q3 I’ll transition to Executive Chair of the Amazon Board and Andy Jassy will become CEO. In the Exec Chair role, I intend to focus my energies and attention on new products and early initiatives. Andy is well known inside the company and has been at Amazon almost as long as I have. He will be an outstanding leader, and he has my full confidence
Rewriting the Ruby parser
At Shopify, we have spent the last year writing a new Ruby parser, which we’ve called YARP (Yet Another Ruby Parser). As of the date of this post, YARP can parse a semantically equivalent syntax tree to Ruby 3.3 on every Ruby file in Shopify’s main codebase, GitHub’s main codebase, CRuby, and the 100 most popular gems downloaded from rubygems.org. We recently got approval to merge this work into C
Software Architecture is Overrated, Clear and Simple Design is Underrated
I had my fair share in designing and building large systems. I've taken part in rewriting Uber's distributed payment systems, designing and shipping Skype on Xbox One and open-sourcing RIBs, Uber's mobile architecture framework. All of these systems had thorough designs, going through multiple iterations and had lots of whiteboarding and discussion. The designs then boiled down to a design documen
Hermes: An open source JavaScript engine optimized for mobile apps, starting with React Native
Hermes: An open source JavaScript engine optimized for mobile apps, starting with React Native Mobile applications are growing larger and more complex. Larger apps using JavaScript frameworks often experience performance issues as developers add features and complexity. These issues are generated from various spots, but the people using these apps expect them to run smoothly, regardless of the dev
Modern client-side routing: the Navigation API | Web Platform | Chrome for Developers
Single-page applications, or SPAs, are defined by a core feature: dynamically rewriting their content as the user interacts with the site, instead of the default method of loading entirely new pages from the server. While SPAs have been able to bring you this feature via the History API (or in limited cases, by adjusting the site's #hash part), it's a clunky API developed long-before SPAs were the
Posted on May 17, 2018 | 6 minutes | Fotis Gimian This post attempts to highlight my thought process in selecting a suitable stack for developing an API in Python for our current project at work. Although I have personally benchmarked various combinations, I haven’t documented the results for this article, instead merely mentioned which frameworks and WSGI servers were found to be fast or slow.
TL;DRWarpStream is an Apache Kafka® protocol compatible data streaming platform built directly on top of S3. It's delivered as a single, stateless Go binary so there are no local disks to manage, no brokers to rebalance, and no ZooKeeper to operate. WarpStream is 5-10x cheaper than Kafka in the cloud because data streams directly to and from S3 instead of using inter-zone networking, which can be
Advancing Excel as a programming language with Andy Gordon and Simon Peyton Jones - Microsoft Research
Episode 120 | May 5, 2021 Today, people around the globe—from teachers to small-business owners to finance executives—use Microsoft Excel to make sense of the information that occupies their respective worlds, and whether they realize it or not, in doing so, they’re taking on the role of programmer. In this episode, Senior Principal Research Manager Andy Gordon, who leads the Calc Intelligence tea
GitHub - ggerganov/llama.cpp: LLM inference in C/C++
The main goal of llama.cpp is to enable LLM inference with minimal setup and state-of-the-art performance on a wide variety of hardware - locally and in the cloud. Plain C/C++ implementation without any dependencies Apple silicon is a first-class citizen - optimized via ARM NEON, Accelerate and Metal frameworks AVX, AVX2 and AVX512 support for x86 architectures 1.5-bit, 2-bit, 3-bit, 4-bit, 5-bit,
While writing this blog and leading Go teams for a couple of years, the most common question I heard from beginners was “What framework should I use?”. One of the worst things you can do in Go is follow an approach from other programming languages. Other languages have established, “default” frameworks. Java has Spring, Python has Django and Flask, Ruby has Rails, C# has ASP.NET, Node has Express,
</Log> In the example code, we want to set a data tag on the home page, page="home". But we aren’t logging a page impression. We want to log an impression of the welcome section. To do so, we pass a logImpression prop into the Log component wrapping the welcome section (along with another data prop, section="welcome"). To make the Log component send an impression of the welcome section, we could c
We want to empower you to experiment with LLM models, build your own applications, and discover untapped problem spaces. That’s why we sat down with GitHub’s Alireza Goudarzi, a senior machine learning researcher, and Albert Ziegler, a principal machine learning engineer, to discuss the emerging architecture of today’s LLMs. In this post, we’ll cover five major steps to building your own LLM app,
Payment and address form best practices Stay organized with collections Save and categorize content based on your preferences. Maximize conversions by helping your users complete address and payment forms as quickly and easily as possible. Well-designed forms help users and increase conversion rates. One small fix can make a big difference! Here is an example of a simple payment form that demonstr
A content-first Web framework Nue is a closer-to-metal framework embracing minimalism and web standards. It's structurally clean and stupidly fast. Get started Product roadmap Content-first: Build entire sites without ever leaving your content Vision The ultimate goal of Nue is to build a perfect web framework, which is ridiculously fast and easy to use. Nue JS Server-side templating and reactive
Post-Incident Review on the Atlassian April 2022 outage - Atlassian Engineering
This PIR is available in the following languages:日本語 | 简体中文 | 繁體中文 | Deutsch | English | Español | Français | Italiano | 한국어 | Polski | Português | русский. Letter from our co-founders & co-CEOs We want to acknowledge the outage that disrupted service for customers earlier this month. We understand that our products are mission critical to your business, and we don't take that responsibility light
How io_uring and eBPF Will Revolutionize Programming in Linux
Things will never be the same again after the dust settles. And yes, I’m talking about Linux. As I write this, most of the world is in lockdown due to COVID-19. It’s hard to say how things will look when this is over (it will be over, right?), but one thing is for sure: the world is no longer the same. It’s a weird feeling: it’s as if we ended 2019 in one planet and started 2020 in another. While
Elm at Rakuten
lucamug Posted on Jan 25, 2021 • Updated on Mar 4, 2023 • Originally published at engineering.rakuten.today In our team at Rakuten, we have been using Elm1 in production for almost two years now. This post is about our story, the lessons we learned, and our likes and dislikes. This post is quite long so if you prefer to see an overview, feel free to jump to the index. Everything started in the Ber
Today, Cloudflare is very excited to announce full support for HTTP/3 Extensible Priorities, a new standard that speeds the loading of webpages by up to 37%. Cloudflare worked closely with standards builders to help form the specification for HTTP/3 priorities and is excited to help push the web forward. HTTP/3 Extensible Priorities is available on all plans on Cloudflare. For paid users, there is
Bootstrap 5 alpha!
The Bootstrap Blog News and announcements for all things Bootstrap, including new releases, Bootstrap Themes, and Bootstrap Icons. Bootstrap 5’s very first alpha has arrived! We’ve been working hard for several months to refine the work we started in v4, and while we’re feeling great about our progress, there’s still even more to do. We’ve been focused on making the migration from v4 to v5 more ap
Now when aws executes it does so from within an op run context. When it’s time to locate the access secrets aws does what it always does, but there is no (plain text) ~/.aws/credentials RC file for it to use. It does, however, find some magical $AWS_ACCESS_KEY_ID and $AWS_SECRET_ACCESS_KEY beans environment variables. These variables use the secret reference syntax to specify that their values nee
Talking TypeScript with the engineer who leads the team - Stack Overflow
In our 2020 Developer Survey results, one of the most tracked statistics is the Most-Loved Language. As it has for several years now, Rust is number one. But coming in at number two is TypeScript, a strongly typed superset of JavaScript, edging out Python by a hair. We wanted to find out what about TypeScript makes it so dang lovable, so we reached out to Ryan Cavanaugh, the principal engineering
On Sunday March 6, we migrated Stripe’s largest JavaScript codebase (powering the Stripe Dashboard) from Flow to TypeScript. In a single pull request, we converted more than 3.7 million lines of code. The next day, hundreds of engineers came in to start writing TypeScript for their projects. Seriously unreal. I remember a short time ago laughing at the idea of typescript ever landing at Stripe, an
[[toc]] This post will be a bit longer than usual. It's quite a big announcement to me, and there are many things I want to talk about. I'll be appreciated if you take the time to read through it. The table of contents is hidden on the left if you are on a desktop. Hope you enjoy :) 中文 Chinese Version What is Atomic CSS? Let's first give a proper definition to Atomic CSS: From this article by John
The activities of the Central Intelligence Agency (CIA) in Japan date back to the Allied occupation of Japan. Douglas MacArthur's Chief of Intelligence, Charles Willoughby, authorized the creation of a number of Japanese subordinate intelligence-gathering organizations known as kikan.[1] Many of these kikan contained individuals purged because of their classification as war criminals.[2] In additi
Lesson 1 1A. to see, saw, seen. thing, something, what. this, these. the other, another, else. 1B. is the same as, be, am, are, being, was, were. one of. two of. person, people. 1C. many of, much of. inside. not, do not, does not, did not. 1D. some of. all of. there is, there are. more than. 1E. live, alive. big. small. very. 1F. kind of. if, then. touch. far from. near to. 1G. in a place, somepla
EngineeringProductA framework for building Open Graph imagesWe recently set about creating a framework and service for automatically generating social sharing images for repositories and other resources on GitHub. You know that feeling when you make your latest hack project public, and you’re ready to share it with the world? And when you go to Twitter to post a link to your repository, you just s
Memory Allocation
One thing that all programs on your computer have in common is a need for memory. Programs need to be loaded from your hard drive into memory before they can be run. While running, the majority of what programs do is load values from memory, do some computation on them, and then store the result back in memory. In this post I'm going to introduce you to the basics of memory allocation. Allocators
Nic Jansma (@nicj) is a software developer at Akamai building high-performance websites, apps and open-source tools. Table of Contents The JS Self-Profiling API What is Sampled Profiling? Downsides to Sampled Profiling API Document Policy API Shape Sample Interval Buffer Who to Profile When to Profile Specific Operations User Interactions Page Load Overhead Anatomy of a Profile Beaconing Size Comp
Home > Posts > Go vs Rust: Writing a CLI tool Published at Jul 14th, 2020 Last updated at Aug 4th, 2020 This text is about my adventure writing a small CLI application (twice) using two languages I had little experience with. If you are eager to jump right into the code and compare it yourself, check it out the Go source and the Rust source. About the Project I have a pet project called Hashtrack,
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A visual guide to React Mental models
Breaking GitHub Private Pages for $35k
Composer 2: What's new and changed
How Shopify Uses WebAssembly Outside of the Browser
How to find the AWS Account ID of any S3 Bucket
Announcing “Quark” — A Software sketchbook for your projects⚡
Python 3.13 gets a JIT
Email from Jeff Bezos to employees
Choosing a Fast Python API Framework
Kafka is dead, long live Kafka
The Best Go framework: no framework?
Creating a React Analytics Logging Library
The architecture of today's LLM applications
Payment and address form best practices | Articles | web.dev
Nue: The content-first web framework
Introducing HTTP/3 Prioritization
Your CLI wish is our command 🪄💫 | 1Password
Migrating millions of lines of code to TypeScript
Reimagine Atomic CSS
CIA activities in Japan - Wikipedia
Learn These Words First
A framework for building Open Graph images
JS Self-Profiling API In Practice
Go vs Rust: Writing a CLI tool - cuchi.me